1 /*
2 * Copyright (C) 2009 Francisco Jerez.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 */
26
27 #include "nouveau_driver.h"
28 #include "nouveau_fbo.h"
29 #include "nouveau_context.h"
30
31 #include "swrast/swrast.h"
32 #include "swrast/s_context.h"
33
34
35
36 static void
renderbuffer_map_unmap(struct gl_context * ctx,struct gl_renderbuffer * rb,GLboolean map)37 renderbuffer_map_unmap(struct gl_context *ctx, struct gl_renderbuffer *rb,
38 GLboolean map)
39 {
40 struct nouveau_surface *s = &to_nouveau_renderbuffer(rb)->surface;
41
42 if (map)
43 nouveau_bo_map(s->bo, NOUVEAU_BO_RDWR, context_client(ctx));
44 }
45
46 static void
framebuffer_map_unmap(struct gl_context * ctx,struct gl_framebuffer * fb,GLboolean map)47 framebuffer_map_unmap(struct gl_context *ctx, struct gl_framebuffer *fb, GLboolean map)
48 {
49 int i;
50
51 for (i = 0; i < fb->_NumColorDrawBuffers; i++)
52 renderbuffer_map_unmap(ctx, fb->_ColorDrawBuffers[i], map);
53
54 renderbuffer_map_unmap(ctx, fb->_ColorReadBuffer, map);
55
56 if (fb->Attachment[BUFFER_DEPTH].Renderbuffer)
57 renderbuffer_map_unmap(ctx, fb->Attachment[BUFFER_DEPTH].Renderbuffer, map);
58 }
59
60 static void
span_map_unmap(struct gl_context * ctx,GLboolean map)61 span_map_unmap(struct gl_context *ctx, GLboolean map)
62 {
63 int i;
64
65 framebuffer_map_unmap(ctx, ctx->DrawBuffer, map);
66
67 if (ctx->ReadBuffer != ctx->DrawBuffer)
68 framebuffer_map_unmap(ctx, ctx->ReadBuffer, map);
69
70 for (i = 0; i < ctx->Const.MaxTextureUnits; i++)
71 if (map)
72 _swrast_map_texture(ctx, ctx->Texture.Unit[i]._Current);
73 else
74 _swrast_unmap_texture(ctx, ctx->Texture.Unit[i]._Current);
75 }
76
77 static void
nouveau_span_start(struct gl_context * ctx)78 nouveau_span_start(struct gl_context *ctx)
79 {
80 nouveau_fallback(ctx, SWRAST);
81 span_map_unmap(ctx, GL_TRUE);
82 }
83
84 static void
nouveau_span_finish(struct gl_context * ctx)85 nouveau_span_finish(struct gl_context *ctx)
86 {
87 span_map_unmap(ctx, GL_FALSE);
88 nouveau_fallback(ctx, HWTNL);
89 }
90
91 void
nouveau_span_functions_init(struct gl_context * ctx)92 nouveau_span_functions_init(struct gl_context *ctx)
93 {
94 struct swrast_device_driver *swdd =
95 _swrast_GetDeviceDriverReference(ctx);
96
97 swdd->SpanRenderStart = nouveau_span_start;
98 swdd->SpanRenderFinish = nouveau_span_finish;
99 }
100